| 不明 | bù míng | not clear; unknown; to fail to understand |
| 不顾 | bù gù | in spite of; regardless of |
| 不错 | bù cuò | correct; right; not bad; pretty good |
| 不然 | bù rán | not so; no; or else; otherwise; if not |
| 不分 | bù fēn | not divided; irrespective; not distinguishing between |
| 不当 | bù dàng | unsuitable; improper; inappropriate |
| 不少 | bù shǎo | many; a lot; not few |
| 不幸 | bù xìng | misfortune; adversity; unfortunate; sad; unfortunately; CL:个 |
| 不等式 | bù děng shì | inequality (math.) |
| 无不 | wú bù | none lacking; none missing; everything is there; everyone without exception |
| 不尽 | bù jìn | not completely; endlessly |
| 不便 | bù biàn | inconvenient; inappropriate; unsuitable; short of cash |
| 不免 | bù miǎn | unavoidable |
| 不只 | bù zhǐ | not only; not merely |
| 不通 | bù tōng | to be obstructed; to be blocked up; to be impassable; to make no sense; to be illogical |
| 不符 | bù fú | inconsistent; not in agreement with; not agree or tally with; not conform to |
| 不曾 | bù céng | never (have done sth) |
| 不可避免 | bù kě bì miǎn | unavoidably |
| 不平衡 | bù píng héng | disequilibrium |
| 不服 | bù fú | not accept sth; want to have sth overruled or changed; refuse to obey or comply; refuse to accept as final; remain unconvinced by; not give in to |
| 不定 | bù dìng | indefinite; indeterminate; (botany) adventitious |
| 不妨 | bù fáng | there is no harm in; might as well |
| 不问 | bù wèn | pay no attention to; disregard; ignore; let go unpunished; let off |
| 不止 | bù zhǐ | incessantly; without end; more than; not limited to |
| 不计 | bù jì | to disregard; to take no account of |
| 不理 | bù lǐ | refuse to acknowledge; pay no attention to; take no notice of; ignore |
| 不该 | bù gāi | should not; to owe nothing |
| 再不 | zài bù | if not, then; otherwise |
| 忍不住 | rěn bu zhù | cannot help; unable to bear |
| 来不及 | lái bu jí | there's not enough time (to do sth); it's too late (to do sth) |
| 不禁 | bù jīn | can't help (doing sth); can't refrain from |
| 不依 | bù yī | not comply; not go along with; not let off easily; not let sb; get away with it |
| 不和 | bù hé | not get along well; be on bad terms; be at odds; discord |
| 不要紧 | bù yào jǐn | unimportant; not serious; it doesn't matter; never mind; it looks all right; but |
| 用不着 | yòng bu zháo | not need; have no use for |
| 不外 | bù wài | not beyond the scope of; nothing more than |
| 对不起 | duì bu qǐ | unworthy; to let down; I'm sorry; excuse me; pardon me; if you please; sorry? (please repeat) |
| 不快 | bù kuài | unhappy; in low spirits |
| 不动产 | bù dòng chǎn | real estate; immovable property; immovables |
| 不规则 | bù guī zé | irregular |
| 不公 | bù gōng | unjust; unfair |
| 不堪 | bù kān | cannot bear; cannot stand; utterly; extremely |
| 不忍 | bù rěn | cannot bear to; disturbed |
| 不知 | bù zhī | not to know; unaware; unknowingly; fig. not to admit (defeat, hardships, tiredness etc) |
| 不时 | bù shí | from time to time; now and then; occasionally |
| 不惜 | bù xī | not stint; not spare; not hesitate (to do sth); not scruple (to do sth) |
| 不解 | bù jiě | to not understand; to be puzzled by; indissoluble |
| 不善 | bù shàn | bad; ill; not good at; not to be pooh-poohed; quite impressive |
| 不结盟运动 | bù jié méng yùn dòng | nonaligned movement |
| 不予 | bù yú | to withhold; to refuse |
